/*******************************************************************************
* Copyright 2011 Google Inc. All Rights Reserved.
*
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*******************************************************************************/
package com.google.gdt.eclipse.designer.model.widgets.cell;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.Lists;
import com.google.common.collect.Maps;
import com.google.gdt.eclipse.designer.model.widgets.support.DOMUtils;
import com.google.gdt.eclipse.designer.util.GwtInvocationEvaluatorInterceptor;
import org.eclipse.wb.core.model.JavaInfo;
import org.eclipse.wb.core.model.broadcast.JavaEventListener;
import org.eclipse.wb.draw2d.geometry.Rectangle;
import org.eclipse.wb.internal.core.model.JavaInfoUtils;
import org.eclipse.wb.internal.core.model.clipboard.ClipboardCommand;
import org.eclipse.wb.internal.core.model.clipboard.JavaInfoMemento;
import org.eclipse.wb.internal.core.model.creation.CreationSupport;
import org.eclipse.wb.internal.core.model.description.ComponentDescription;
import org.eclipse.wb.internal.core.model.generic.FlowContainer;
import org.eclipse.wb.internal.core.model.generic.FlowContainerFactory;
import org.eclipse.wb.internal.core.utils.ast.AstEditor;
import org.eclipse.wb.internal.core.utils.ast.AstNodeUtils;
import org.eclipse.wb.internal.core.utils.jdt.core.CodeUtils;
import org.eclipse.wb.internal.core.utils.reflect.ReflectionUtils;
import org.eclipse.jdt.core.dom.ITypeBinding;
import net.sf.cglib.proxy.Enhancer;
import org.apache.commons.lang.StringUtils;
import java.util.List;
import java.util.Map;
/**
* Model for <code>com.google.gwt.user.cellview.client.AbstractCellTable</code>.
*
* @author sablin_aa
* @author scheglov_ke
* @coverage gwt.model
*/
public abstract class AbstractCellTableInfo extends AbstractHasDataInfo {
////////////////////////////////////////////////////////////////////////////
//
// Constructor
//
////////////////////////////////////////////////////////////////////////////
public AbstractCellTableInfo(AstEditor editor,
ComponentDescription description,
CreationSupport creationSupport) throws Exception {
super(editor, description, creationSupport);
addClipboardSupport();
// creation support templates
addBroadcastListener(new JavaEventListener() {
@Override
public void associationTemplate(JavaInfo component, String[] source) throws Exception {
// Column creation
if (component instanceof ColumnInfo && component.getParent() == AbstractCellTableInfo.this) {
String rowTypeName;
{
ITypeBinding rowTypeBinding = getRowTypeBinding();
rowTypeName = AstNodeUtils.getFullyQualifiedName(rowTypeBinding, false);
}
// apply "%rowType%" into creation source
source[0] = StringUtils.replace(source[0], "%rowType%", rowTypeName);
}
}
});
}
////////////////////////////////////////////////////////////////////////////
//
// Access
//
////////////////////////////////////////////////////////////////////////////
public List<ColumnInfo> getColumns() {
return getChildren(ColumnInfo.class);
}
/**
* @return the height of header with columns.
*/
public abstract int getHeaderHeight() throws Exception;
////////////////////////////////////////////////////////////////////////////
//
// Initializing
//
////////////////////////////////////////////////////////////////////////////
@Override
public void createExposedChildren() throws Exception {
super.createExposedChildren();
// create exposed columns
ClassLoader editorLoader = JavaInfoUtils.getClassLoader(this);
Class<?> columnClass = editorLoader.loadClass("com.google.gwt.user.cellview.client.Column");
JavaInfoUtils.addExposedChildren(this, new Class<?>[]{columnClass});
}
////////////////////////////////////////////////////////////////////////////
//
// Refresh
//
////////////////////////////////////////////////////////////////////////////
@Override
protected void refresh_afterCreate() throws Exception {
super.refresh_afterCreate();
replaceCustomColumns();
}
/**
* We set {@link String} objects as rows. But if there is custom <code>Column</code> which expects
* some real "row", this can cause {@link ClassCastException}. So, we replace custom
* <code>Column</code> with fake.
*/
@SuppressWarnings("unchecked")
private void replaceCustomColumns() throws ClassNotFoundException, Exception {
// prepare object -> model map
Map<Object, ColumnInfo> columnModels = Maps.newHashMap();
for (ColumnInfo columnModel : getColumns()) {
columnModels.put(columnModel.getObject(), columnModel);
}
// replace columns
ClassLoader classLoader = JavaInfoUtils.getClassLoader(this);
List<Object> columns = (List<Object>) ReflectionUtils.getFieldObject(getObject(), "columns");
for (int i = 0; i < columns.size(); i++) {
Object column = columns.get(i);
String columnClassName = column.getClass().getName();
// replace Column with "fake"
if (!Enhancer.isEnhanced(column.getClass())
&& !columnClassName.startsWith("com.google.gwt.user.cellview.client.")) {
ColumnInfo columnModel = columnModels.get(column);
// create new Column instance
{
String text = CodeUtils.getShortClass(columnClassName);
column = GwtInvocationEvaluatorInterceptor.createTextColumn(classLoader, text);
columns.set(i, column);
}
// set new Column object into model
if (columnModel != null) {
columnModel.setObject(column);
}
}
}
// set rows
{
List<String> rows = ImmutableList.of("1", "2", "3", "4", "5");
ReflectionUtils.invokeMethod(getObject(), "setRowData(java.util.List)", rows);
}
}
@Override
protected void refresh_fetch() throws Exception {
super.refresh_fetch();
// calculate columns bounds
{
List<Rectangle> columnBounds = getColumnBoundsByBody();
List<?> columnObjects = getColumnObjects();
List<ColumnInfo> columns = getColumns();
for (ColumnInfo column : columns) {
int index = columnObjects.indexOf(column.getObject());
column.setModelBounds(columnBounds.get(index));
}
}
}
/**
* Calculate columns bounds by first data row cells bounds.
*
* @return {@link List} columns bounds, if available.
*/
protected abstract List<Rectangle> getColumnBoundsByBody() throws Exception;
/**
* @return the {@link List} of bounds for each <code>TD</code> element in given <code>TR</code>.
*/
protected final List<Rectangle> getRowCellsRects(Object trElement) throws Exception {
List<Rectangle> rects = Lists.newArrayList();
DOMUtils dom = getDOMUtils();
for (Object cell : dom.getChildren(trElement)) {
Rectangle rect = getState().getAbsoluteBounds(cell);
absoluteToRelative(rect);
rects.add(rect);
}
return rects;
}
////////////////////////////////////////////////////////////////////////////
//
// Utils
//
////////////////////////////////////////////////////////////////////////////
/**
* @return the number of columns.
*/
public int getColumnCount() {
return getColumnObjects().size();
}
public List<?> getColumnObjects() {
return getColumnObjects(getObject());
}
public static List<?> getColumnObjects(Object table) {
return (List<?>) ReflectionUtils.getFieldObject(table, "columns");
}
/**
* Adds given {@link ColumnInfo} as last.
*/
private void addColumn(ColumnInfo column) throws Exception {
List<FlowContainer> flowContainers = new FlowContainerFactory(this, false).get();
for (FlowContainer flowContainer : flowContainers) {
if (flowContainer.validateComponent(column)) {
flowContainer.command_CREATE(column, null);
break;
}
}
}
////////////////////////////////////////////////////////////////////////////
//
// Clipboard
//
////////////////////////////////////////////////////////////////////////////
private void addClipboardSupport() {
addBroadcastListener(new JavaEventListener() {
@Override
public void clipboardCopy(JavaInfo javaInfo, List<ClipboardCommand> commands)
throws Exception {
if (javaInfo == AbstractCellTableInfo.this) {
List<ColumnInfo> columns = getColumns();
for (ColumnInfo column : columns) {
final JavaInfoMemento columnMemento = JavaInfoMemento.createMemento(column);
final Object headerValue = column.getHeaderProperty().getValue();
commands.add(new ClipboardCommand() {
private static final long serialVersionUID = 0L;
@Override
public void execute(JavaInfo javaInfo) throws Exception {
AbstractCellTableInfo cellTable = (AbstractCellTableInfo) javaInfo;
ColumnInfo column = (ColumnInfo) columnMemento.create(cellTable);
cellTable.addColumn(column);
column.getHeaderProperty().setValue(headerValue);
}
});
}
}
}
});
}
}